I had the classic 40 meltdown. I did. It's embarrassing. It was pretty funny. But then I recovered. To me it was like a second adolescence. Hormonally my body was changing my mind was changing and so my relationship to myself and the world around me came to this assault of finiteness.
Don't believe your friends when they ask you to be honest with them. All they really want is to be maintained in the good opinion they have of themselves.